Circles of Light: The Mathematics of Rainbows
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http://geom.math.uiuc.edu/education/calcinit/rainbow/  


Steven Janke; The Geometry Center  
How are rainbows formed? Why do they only occur when the sun is behind the observer? If the sun is low on the horizon, at what angle in the sky should we expect to see a rainbow? This lab helps to answer these and other questions by examining a mathematical model of light passing through a water droplet. Objectives of the Lab; How does light travel? Reflection; Refraction; Exploration; Analysis.  


Levels:  Middle School (68), High School (912), College 
Languages:  English 
Resource Types:  Lesson Plans and Activities 
Math Topics:  Calculus (Single Variable), Euclidean Plane Geometry, Physics 
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